Table 3
Cross-tabulation of knee OA at baseline versus the 6-year MRI
Knee OA on baseline MRI
No
Yes
Total
Knee OA on 6-year MRI
No
30
−
30
Yes, new knee OA
12
−
12
Yes, stable existing knee OA
−
2
2
Yes, progression existing knee OA
−
3
3
Total
42
5
47
OA, osteoarthritis.